This New Hair Color Trend Is Actually Perfect for Brunettes

When you hear the phrase "oil slick hair," your first thought is probably not hair dye — especially if you have locks that are on the thinner side. But this fall beauty trend has nothing to do with actual grease and everything to do with the beautiful color patterns that appear in oil.

A post shared by Brandy✂️Barnes (@brandybstylist) on Sep 25, 2015 at 9:52am PDT

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Introducing "oil slick hair," dubbed by Aura Friedman of Sally Hershberger Salon, a beautiful style that applies jewel tones over darker hair, giving it an iridescent appearance. This is similar to the opal hair color trend, but its shimmery effect comes from blending darker shades rather than ultra-pale ones.

Friedman told PopSugar that she wanted to recreate the appearance of when gasoline is on the ground and it rains: "I find that when you take a dark purple and a dark green and layer them one on top of the other, you end up with this iridescent feeling." She's right. The effect is a beautiful, mysterious hue.